NOTES: Hazardous material incident locations
are often listed as the terminals or sorting centers where they are
discovered. Therefore, states with
this type of a facility may show a disproportionate number of incidents.

Hazardous materials transportation incidents required to
be reported are defined in the Code of Federal Regulations (CFR), 49 CFR Part
171.15, 171.16 (Form F 5800.1).
Incident means any of the following events: (1) a fatality or major
injury caused by the release of a hazardous material; (2) the evacuation of
25 or more persons as a result of release of a hazardous material or exposure
to fire; (3) a release or exposure to fire which results in the closure of a
major transportation artery; (4) the alteration of an aircraft flight plan or
operation; (5) the release of radioactive materials from Type B packaging;
(6) the release of over 11.9 gallons or 88.2 pounds of a severe marine
pollutant; or (7) the release of a bulk quantity (over 119 gallons or 882
pounds) of a hazardous material.

Hazardous materials deaths and
injuries are caused by the hazardous material in commerce.

Hazardous materials incident data are
subject to revision and correction by the Office of Hazardous Materials
Safety.

SOURCE:
U.S. Department of Transportation, Pipeline and Hazardous Materials
Safety Administration, Office of Hazardous Materials Safety, Hazmat Summary by State for Calendar
Year 2004, Washington,
DC: 2005, available at http://hazmat.dot.gov as of Sept. 30, 2005.